Merge "libstagefright_aidl_bufferpool2: avoid list<const T>" into main am: 9c94c5c4

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/3151178



Change-Id: I7335cc3a5b30710a3dd3c18968488a2b8edb44d4
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>